Sky-Dweller Yellow Gold / White / Alligator

In Context

At 42 mm it is sized to the current mainstream: 40 mm is the median across every watch measured in this catalogue. At 14.1 mm it is a tall case, and it will catch on a cuff. The case back is closed, so the movement stays out of sight, and the sapphire crystal will resist everything short of deliberate abuse. 100 m is genuine swimming resistance — more than the shape of this watch suggests it would need.

The movement winds itself from the motion of your wrist. 72 hours of reserve puts it well past a weekend — several days off the wrist and it is still going. At 28,800 vph the seconds hand advances 8 times a second.

326138-0010 is one of 5 executions of the 326138 base reference. Underneath they are the same watch; what separates this one is a white dial and a yellow gold case. Introduced in 2012. Beyond the time it carries a date.

The 9001 is the Sky-Dweller's movement of 2012: an annual calendar and a second time zone in one automatic, with the functions selected through the bezel. It powers 40 watches in this library, every one a 42 mm Sky-Dweller. It was the most complex movement Rolex had built, with 380 parts and seven patents. The Saros annual calendar distinguishes the 30-day and 31-day months and needs correcting only at the end of February, showing the month in twelve windows around the dial; home time sits on a rotating 24-hour disc; and the Ring Command bezel turns to select which function the crown sets. It is 33 mm across with 40 jewels, a 72-hour reserve and a beat of 28,800 vph, with a Parachrom hairspring and Paraflex shock absorbers, and every one is a Superlative Chronometer. In the library it powers the 3269xx generation of the [Sky-Dweller](/brands/rolex/sky-dweller), 40 references in yellow, white and Everose gold and, from 2017, Rolesor. The [9002](/calibers/rolex-9002) of 2023 is the same movement with the Chronergy escapement, and the glossary defines the [annual calendar](/glossary/annual-calendar) and the [GMT](/glossary/gmt) function it combines.

39 other watches in the library run the Rolex 9001.

Rolex

Sky-Dweller Yellow Gold / Black

326938-0004 · 42 mm

Rolex

Sky-Dweller Yellow Gold / Champagne / Oysterflex

326238-0007 · 42 mm

Rolex

Sky-Dweller Yellow Gold / White / Oysterflex

326238-0006 · 42 mm

Rolex

Sky-Dweller Yellow Gold / Black / Oysterflex

326238-0009 · 42 mm